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Deconfusing Detections in Directly Imaged Multiplanet Systems

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dc.contributor.authorPogorelyuk, Leoniden
dc.contributor.authorFitzgerald, Rileyen
dc.contributor.authorVlahakis, Sophiaen
dc.contributor.authorMorgan, Rhondaen
dc.contributor.authorCahoy, Kerrien
dc.date.accessioned2023-05-05T13:59:42Zen
dc.date.available2023-05-05T13:59:42Zen
dc.date.issued2022-10en
dc.description.abstractHigh-contrast images from future space-based telescopes may contain several planets from multiplanet systems and potentially a few planet-like speckles. When taken several months apart, the short-period planets and speckles will appear to move significantly, to the point that it might not be clear which point source (detection) in the image belongs to which object. In this work, we develop a tool, the deconfuser, to test quickly all the plausible partitions of detections by planets based on orbital mechanics. We then apply the deconfuser to a large set of simulated observations to estimate "confusion" rates, i.e., how often there are multiple distinct orbit combinations that describe the data well. We find that in the absence of missed and false detections, four observations are sufficient to avoid confusion, except for systems with high inclinations (above 75 degrees). In future work, the deconfuser will be integrated into mission simulation tools, such as EXOSIMS, to assess the risk of confusion in missions such as the IR/O/UV large telescope recommended by the Astro2020 decadal survey.en
dc.description.notesThis research was carried out in part at the Massachusetts Institute of Technology (RSA No. 646345) and in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004) and funded through the Strategic University Research Partnership (SURP) program.en
dc.description.sponsorshipMassachusetts Institute of Technology (RSA) [646345]; National Aeronautics and Space Administration [80NM0018D0004]; Strategic University Research Partnership (SURP) programen
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3847/1538-4357/ac8d56en
dc.identifier.eissn1538-4357en
dc.identifier.issue2en
dc.identifier.other66en
dc.identifier.urihttp://hdl.handle.net/10919/114930en
dc.identifier.volume937en
dc.language.isoenen
dc.publisherIOP Publishingen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectProspectsen
dc.subjectplanetaryen
dc.subjectorbiten
dc.titleDeconfusing Detections in Directly Imaged Multiplanet Systemsen
dc.title.serialAstrophysical Journalen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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